Molding-machine clamping mechanism.



e. c. BA-TTEN.

MOLDING MACHINE CLAMPING MECHANISM.

APPLICATION FILED APRL20, 1915.

1,167,877. v Patenfed Jan. 11, 1916.

6' 9 v 4 2 SHEETS-SHEET I.

COLUMBIA PLANOGRAPH COWWASHINGTO N. D. c.

' G. 0.5mm.

MOLDING MACHINE CLAMPING MECHANISM.

7 APPLICATION FILED APR. '20. 1915. 1,167,877.

v Patented Jan. 11, 1916.

2 SHEETS-SHEET 2.

be, WASHINGTON D c invrrnin 'sra rns mama ormcn GITDEON C. BATTIEN, OF CINCINNATI, OHIO, ASSIGNOR TO INTERNATIONAL MOLDING MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF- ILLINOIS.

MOLDING-MACHINE CLAMPING MECHANISM.

Specification of Letters Patent.

Patented Jan. 11, 1916.

Application filed April 20, 1915. Serial N0. 22,706.

I To all whom it may concern.

Be it known that I, GIDEoN C. BATTEN, a citizenof the United States, residing at Cin cinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Molding-Machine Clamping Mechanism, of which the following is a specification. I

My invention relates to improvements in locking mechanism for molding machines.

One of its objects is to provide simple, efficient, reliable and practical means to lock the flask section to the molding machine platen while it is being reversed and transferred from the forming or ramming plunger or standard to the receiving or supporting standard.

Another object is to provide locking means which may be conveniently and quickly applied and released, and is not in the way or liable to disturb the flask member in being applied or detached therefrom.

My invention also comprises certain details of form, combination and arrangement, all of which will be fully set forth in the description of the accompanying drawings in which- Figure 1. is a side elevation partly in section of a molding machine with theflask member on its ramming standard ready'to be reversed and transferred. Fig. 2. is a similar View after the flask member has been transferred and reversed. Fig. 3. is a perspective viewof the hinged locking member detached. Fig. 4:. is a similar View illus trating a modification. Fig. 5. is a perspective view of the detachable locking member detached. Fig. 6. is a bottom plan View of the spring latch member. Fig; 7 is a perspective View of the latch releasing cam member detached. Fig. 8. is a detail in side elevation illustrating a modification of the latch mechanism.

The accompanying drawings illustrate the preferred embodiment of my invention in which A represents the base of a general type molding machine.

B represents a standard on which the mold board D is supported and jarred or vibrated to cause the molding sand to settle firmly about the pattern which is attached to or rests upon the mold board. A flask member E, either the cope or drag, is seated upon the mold board and held in position relative theretobymean's of dowel pins not shown. As soon asthe flask member has become filled With sand the upper surface of the sand is leveled off and abottom board or platen F is placed over the sand upon the flask member E and theparts are ready to be locked together in order that the flask member E and bottom board F containing the molded sand may be turned up side down" and transferred to the supporting standard H, and the mold board and pattern detached therefrom and returned'to the standard B ready to receive another flask member to form another sand mold.

K represents a frame 'pivotally supported upon a center 2', on the standard L, the frame K has forked arms is to pass on opposite sides of the standard B and to which the mold board D is attached. A cylinder 3 and plunger f serve to move the frame K through substantially a half circle about.

the center 2 from the position Fig. 1 to the position Fig. 2, and return. In orderto firmly lock the fiaskmember E the platen F and the contained sand to the mold board D and frame K while being moved from standard B to standard H, I provide a member lv hinged at 5 to the arms is of frame 1C with its shank freely'movable and provided with a series ofperforations 6. A metal bar 7 has a shank 8 to enter any desired one of the holes 6. shoe? is preferably attached by a" bolt to the bar and interposed between the bar 7 and the bottom board F inorder to apply pressure centrally and evenly to the bottom board, for which purpose the'meeting faces of the shoe and" bar 7 have a substantially ball and socket adjustment relative to each other. Hinged to thefopposite end of the bar 7 is a toothed bar 10 the serrated end of which enters a recess 11 between the stationary latch member 12 and the spring actuated latch member 14. The latch member 12 is fastened to the mold board D or arms is of frame K while the member 14 is mounted upon and guided relative to member 12 by the stud bolts 15, and held yieldingly in place to engage the serrated face of the bar 10 by means of springs 16, locked thereto by nuts 17. A yoke shaped lever 18 is pivoted to member 12 at 19 and has cam faces to engage member 1% at opposite ends to force member 14: outwardly to release the bar 10 when desired.

In practice the depth of the flask members vary from time to time depending upon the shape of the pattern and the series of holes (3 enables one to be selected at substantially the right height above the bottom board F into which. to insert the shank 8. The tapered end of bar 10 is then inserted into the recess 11 and pressure applied where the bars 7 and 10 are hinged together to force bar 10 as far as possible into recess 11 whereupon the spring actuated member 14: engages the teeth of bar 10 and locks all the parts in position ready to reverse the flask section. After the flask section has been reversed in position and transferred to the standard H the bottom board F rests in a horizontal position upon four projections 20 and the bar 7 occupies'a position between said projections free to be removed. The latch member 14: is released by means of the levers l8 and the bars 7 and 10 detached. Then the frame K and mold board D with the patternare detached from the sand and flask member E and returned to the position ig. 1. During this return movement the locking member f swings freely upon its center 0 so as not to contact with and upset,

jar, or injure the parts resting upon the standard H. Where unusually deep flask members are to be employed I preferablyemploy a locking member 4 see Fig. 4, hav- 7 ing centers 5 to hinge it to a frame K and a hinged joint 30 to enable the member 4; to

return to its original position without liability of, contacting with the flask member supported upon the standard H. For unusually heavy flasks I preferably employ as illustrated in Fig. 8 a bar 10' having a rack 31 which is engaged by a pinion 32 journaled to a frame 33 attached to the mold board D. A hand crank 3% serves to turn the pinion to draw the bar 10 into locked position and a pawl 35'engages the pinion to hold the parts in locked position.

The mechanismherein illustrated and described is capable of considerable modification without departing from the principle of my invention.

Having described my invention, what I claim is:

1. In combination With the mold board and transposing frame of a molding ma chine, a locking mechanism comprising a locking member hinged to said frame and a latch member carried rigidly relative to said frame, and a detachable member com posed of two bars hinged together and provided with means to detachably engage their free ends respectively with the free end of said hinged locking memberand said latch member.

2. In combination with the mold board and. transposing frame of a molding machine a locking mechanism comprising a horizontally disposed cross bar above aflask memberto hold it in position upon the mold board, a vertically disposed toothed bar hinged at one end to said cross-bar, and means carried; by said frame to detachably engage the free ends of said respective bars.

3. In combination with the mold board and transposing frame of a molding nachine, a lockingmechanism; comprising a locking member hinged at one end to saidframe, and. free at its" opposite end, and located 'at one side of said mold board a latch member carried by said frame at the opposite side of said mold board, a cross-bandetachably and adjustably connected to the free end of said hingedmember, and atoothed bar hinged at one end to said cross-' ried by said frame to detachably engage the.

free ends of said respective bars. I r h In testimony whereof I have affixed my signature in presence of two witnesses.

GIDEON C. i BATTEN.

Witnesses:

C. W. MiLiis W. THoRNToN Boenn'r.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

